Human Anatomy & Physiology Extra Credit Questions; Ziser 11/15
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Extra Credit Critical Thinking Questions
(2404; Intro to A&P)
Most of the followin g ques tions are designed to go a littl e beyo nd the specific knowledge you ar e actually accountable for
in this class. You may have to search for additio nal informat ion to answer som e of them. There are textbooks in the library
or a number of resources on the web that you can use to find answers to questions not discussed in your text. A few will
require only a sentence or two, most will require some elaboration and explanation. On your answer sheet please include
subject titles. Use the actual number given below fo r each question, you do not need to write o ut the question you are
answering. The correct answer to each question is worth on e point. Any points you receive from answering these
questions will contribute toward your total EC points possible. Extra Credit answers are due on the test date covering those
topics, they will not b e accepted aft er that . Copying answers from a classma te will get both of you an “F ” in the course.
The Human Body, an Orientation
1. When we begin to become dehydrated, we usually become thirsty, which causes us to drink fluids.
On the basis of what you now know about control systems, decide whether the thirst sensation is
part of a negative or a positive feedback control system and defend your choice.
7. People who are allergic to penicillin or aspirin often wear Medic Alert bracelets or necklaces that
note this fact in case they need emergency medical treatment and are unable to communicate. Why
would it be important for a person with situs inversus to have this noted on a Medic Alert
bracelet.
Basic Chemistry & Biochemistry
3. Based on your own body weight, how much of each of the following elements do you have in your
body IN GRAMS!!!
Oxygen
Carbon
Calcium
Sodium
Iodine
Iron
Show your work.
4. Mrs. Roberts, in a diabetic coma, has just been admitted to Noble Hospital. Her blood pH indicates
that she is in severe acidosis, and measures are quickly instituted to bring her blood pH back within
normal limits. Why, specifically, is severe acidosis dangerous?
Cells and Tissues
1. A "red-hot" bacterial infection of the intestinal tract irritates the intestinal cells and interferes with
digestion. Such a condition is often accompanied by diarrhea, which causes loss of body water.
On the basis of what you have learned about osmotic water flows, explain why diarrhea may occur.
5. Many athletes work to reduce their body fat to the lowest possible percent. What are some of the
functional and structural consequences that could develop if too little body fat were present.
Skin and Body Membranes
